1, medium density heat shrink sleeve heat resistance is poor, baking easy to crack, so operators often bake the underfire, thicker back material makes adhesive difficult to fully melt, thinner adhesive layer is not conducive to sealing. Because the product heat resistance is good, operators dare to bake, thinner back material makes the adhesive easy to fully melt, thicker adhesive layer and increase the sealing performance, can be in the case of poor construction level, to maintain better corrosion resistance.
2, the density of high-density heat shrink sleeve in 0.940 or more, the medium density range of 0.926 to 0.940. High density means higher mechanical strength, better heat resistance, lower breathability and water vapor transmission.
Through the above analysis, we can see that the high density of the heat shrink sleeve is better than the medium density, but also depends on the specific use, if our general engineering use will first choose high-density products, because its performance will be relatively stable, if the use of medium density products to look at the use of the environment, so as to make a reasonable choice.
